ASR:2015-05-11

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2015年5月18日 (一) 01:21Lr讨论 | 贡献的版本

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Speech Processing

AM development

Environment

  • grid-15 often does not work

RNN AM

Mic-Array

  • Change the prediction from fbank to spectrum features
  • investigate alpha parameter in time domian and frquency domain
  • ALPHA>=0, using data generated by reverber toolkit
  • consider theta
  • compute EER with kaldi

RNN-DAE(Deep based Auto-Encode-RNN)

Speaker ID

Ivector&Dvector based ASR

  • hold --Tian Lan

Dark knowledge

  • Ensemble using 100h dataset to construct diffrernt structures -- Mengyuan
  • adaptation for chinglish under investigation --Mengyuan Zhao
  • Try to improve the chinglish performance extremly
  • unsupervised training with wsj contributes to aurora4 model --Xiangyu Zeng
  • test large database with AMIDA

bilingual recognition

Text Processing

RNN LM

  • rnn
  • test the ppl and code the character-lm(hold)
  • lstm+rnn
  • check the lstm-rnnlm code about how to Initialize and update learning rate.(hold)

W2V based document classification

  • make a technical report about document classification using CNN --yiqiao
  • CNN adapt to resolve the low resource problem

Translation

  • similar-pair method in English word using translation model.
  • result:wer:70%-50% on top1.
  • change the AM model

Order representation

  • modify the objective function
  • sup-sampling method to solve the low frequence word

binary vector

Stochastic ListNet

  • using sampling method and test

relation classifier

  • test the bidirectional neural network(B-RNN) and get a little improvement